What regional awards give the team a place in the championship?
Regional Chairman’s Award
Rookie All Star
If a team that wins one of these awards has already qualified, a wildcard is generated which passes to the finalist alliance in pick order. This year regionals start with one wildcard as well, so the captain of the finalist alliance is guaranteed a spot at worlds. If the entire finalist alliance is already qualified or there are wildcards left over, the extra wildcards do not pass to anyone else.
This page should give you the answers you seek.
Edit: Specifically this table
All of which is covered in Section 10.12 of the manual, section heading “Advancement Between Tournaments”.